Makefile

# Makefile for mkern

PROJECT=mkern

CROSS_PREFIX :=
PP=$(CROSS_PREFIX)cpp
CC=$(CROSS_PREFIX)gcc
CCFLAGS=-O3 -pipe -Wall -Werror $(CFLAGS) \
        -nostdlib -T ld.script            \
        -Wa,-mla-global-with-pcrel        \
        -Wa,-mla-global-with-pcrel        \
        -Wa,-mla-global-with-abs          \
        -fno-plt -Wa,-mla-global-with-abs,-mla-local-with-abs

SRCDIR=src
BINDIR=bin
CONFDIR=conf
BUILDDIR=build

TARGET=$(BINDIR)/mkern

-include build.mk
CCSRCS=$(filter %.c,$(SRCFILES))
ASSRCS=$(filter %.S,$(SRCFILES))
LDOBJS=$(patsubst $(SRCDIR)/%.c,$(BUILDDIR)/%.o,$(CCSRCS)) \
	   $(patsubst $(SRCDIR)/%.S,$(BUILDDIR)/%.o,$(ASSRCS))
DEPEND=$(LDOBJS:.o=.dep)

BUILDMSG="\e[1;31mBUILD\e[0m %s\n"
LINKMSG="\e[1;34mLINK\e[0m  \e[1;32m%s\e[0m\n"
CLEANMSG="\e[1;34mCLEAN\e[0m %s\n"

V :=
ECHO_PREFIX := @
ifeq ($(V),1)
	undefine ECHO_PREFIX
endif

.PHONY: all clean

all : $(TARGET)

clean :
	$(ECHO_PREFIX) $(RM) -rf $(BINDIR) $(BUILDDIR)
	@printf $(CLEANMSG) $(PROJECT)

$(TARGET) : $(LDOBJS)
	$(ECHO_PREFIX) mkdir -p $(dir $@)
	$(ECHO_PREFIX) $(CC) -o $@ $(LDOBJS) $(CCFLAGS)
	@printf $(LINKMSG) $@

$(BUILDDIR)/%.dep : $(SRCDIR)/%.c
	$(ECHO_PREFIX) mkdir -p $(dir $@)
	$(ECHO_PREFIX) $(PP) $(CCFLAGS) -MM -MT$(@:.dep=.o) -MF$@ $< 2>/dev/null

$(BUILDDIR)/%.dep : $(SRCDIR)/%.S
	$(ECHO_PREFIX) mkdir -p $(dir $@)
	$(ECHO_PREFIX) $(PP) $(CCFLAGS) -MM -MT$(@:.dep=.o) -MF$@ $< 2>/dev/null

$(BUILDDIR)/%.o : $(SRCDIR)/%.c
	$(ECHO_PREFIX) mkdir -p $(dir $@)
	$(ECHO_PREFIX) $(CC) $(CCFLAGS) -c -o $@ $<
	@printf $(BUILDMSG) $<

$(BUILDDIR)/%.o : $(SRCDIR)/%.S
	$(ECHO_PREFIX) mkdir -p $(dir $@)
	$(ECHO_PREFIX) $(CC) $(CCFLAGS) -c -o $@ $<
	@printf $(BUILDMSG) $<

ifneq ($(MAKECMDGOALS),clean)
-include $(DEPEND)
endif